Apparatus for the manufacture of pipe.



PATENTED JULY 10, 1966. A. M. SAUNDBRS.

LPPLIOATION =FILBD JN 23, 1904.

APPARATUS PGR THB MANUPAGTURB OF PIPE.

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- -Pipe and UNITED STATES PATENT oFFIo'EJ Aocosfrcsn. sAUNDERs-, on Mouansrour, PENNSYLVANIA, Assieme To NATIONAL TUBE oo., or rrrrsscao, PENNSYLVANIA, A coere- RATION OF NEW J ERSEY.-

APPARATUS FOR THE' MANUFAGTURE OF PIPE.

No. ea enzo.

Speeieeton of Letters Patent.

atentec'i July 10, 1906.

Applqatinn ed January 23, 1961i. Serial No. 3.90'B5.

Io all whom it may concern:

yBe it known that I, AUGUSTUS M. Saon- DERS, a resident of McKeesport, in the county of Ailegheny and State of Pennsyivania, have invented a new and useful Improvement in A paratus for the Manufacture of do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to the manufacture cf Welded tubing, and has special reference to the manufacture of long Welded tubing Yand the inishing of the welded tubesjn bringing' them tosuitable desired len th. q

In the manufacture of W at is known as double-iength tubing the custom has been to Weld the tube in lengths of about thirtysix to thirty-eight (36 to 38) feet and then to Eeass the tube through finishing-rolls, the tube ing transferred to what was known as the sizing-trough," having back of and in line with it sizing-rolls, which bring the tube to ro r size and feed it to a cross-roll trough ea. ing to suitable cross-rolls, which by circular rolling bring it to true cylindrical sha Ve and to place a savffor cutting the Welded tu e into sections' either in the sizing-trough or the cross-roll trough. In operating this 'Way delays were liable to occur, either in the severing of the blank or the feeding of the different severed tube-sections along the same course, and the object of the resent 'invention is to overcome this difcu ty.V

To these vends the invention consists, gen- -eralifryif1 stated, in the combination, with a weldingmace and weldin apparatus infront thereofE of iinishing-ro s adapted to receive l and msh the weldedtube, a final receivingtrough baci;V of and in line with the finishing,- rois, a'saw ada' tedV t to pass across tbe final reeeiving-troug and sever the tube into sections, and a tube-receiver at ,the side of the naireceiving-trough to receive the severed tube therefrom.

It also consists in certain other, im rovemc nts hereinafter more uliy set fort and ciaimed. A

In the accompanying drawings, Figure 1 is a. plan view of apparatus embodying the invention. rFi i 21s an enlarged cross-section illustra t e preferred construction of ther saw and al receiving -trough and the method of deiivery from the same to the cooling-table. 2

n the accompanying drawings the furnace 2 is of an suitable construction, bein preferably o a. regenerative type an long enough to heat b anks of "sufliclent len th to form Welded tubes of double the or inary standard length the furnace being Vusually .about fort to forty-five to 45) feet in length, Y ounted in front of the same is any suitable tube-Welding apparatus 3, that illustrated in the drawin s being the usual swin ingdraW-bench use for making butt-We d pipe, the bench being pivoted at the rear end 4 and having a continuously-running `drawchain 5, the tube-fbianks to be WeldedV being *connected thereto oy ineens of the tongs and drawn throu h the-bell-holder 6a at the front endet the ench. At the side of this Vwelding ap aratns is the sizing-mii trou l1 7 the `tube into VtheY cross-roll trough 9, from which the tube passes through the crossrollsV 10; Vlaau'ik of thecross-rolls 10 is the finei receiving or c'oolin -table trough i1, which is shown as farine in two sections 12 saw-frame 14, carrying `the saw 15, adapted to pass across the trou h 11 and between its sections 12 and 13. Yfinalreceiving-trough -11 malty abieo'rn, so as to provide er ineiosing and supportingrthe tube during cross-rolling and dui-mg the VYpereitif'ni and to provide for the nick de ivory of the severed tubesections om the trough to a suitable tube receiver or receivers at the side of the final receiving-trough, such as. the cooling-tables 17 and'lS.

To prcipey 'support the tube during crossroii' and especially when cross-rolling long ie 1Itie, it is nemes'sa that the tubey shall be entlrel inclosed Witin the trou h tofprepose and-tahoid the welded tube during the sawing;Y Y j reefY I Yprefer the construction shown in theeniar'ged view, Fig. 2, the upper face 16 of the bed portion 19 of- 'the trough beji fqrniedine" 'ed and the trou h provid with a hinged cover 20, pivo at the L outer and'upper edge of the mciin'ed body in line wit tiie-sizing-rolls 8, which de ver 13 while located at one side of thesame is the T e two sections ci the Y ne of an? suit- Y i vent w 'ppng action caused byrtir erotation of the iong hot flexibietube For-thiapurportion 19 and curved so'as to extend down as the tube is discharged from the cross-rolls to the lower ed e thereof and receive within the saw is caused to pass across the same n the same the nished tube. By means of and sever the tube into sections, the final resitable lever connections 21 these top porceivin -trough thus supporting the blank not 5 tions or trough-covers 2() may be raised, the onlf uring the cross-rolling, but inclosing trough so opening in a downward direction an holding it firmly during the sawing opand providing for the passage of the severed eration. As soon as the tube is thus severed 65 tube-sections over the inclined skids 22 onto into sections it isy discharged in any suitable '5 the continuo" chain cooling-tables. As it wayfrom thefinalreceiving-trough. Forexrc is desirable that the saw shall be under comample, by means of the levers 21 the covers plete control, it is preferably mounted 4the 20 of the two trough-sections l2 and 13 are way illustrated. The saw-frame or swinging raised, the troughs thus opening in a down- 7o 'arm 14 is mounted in a stationary bearing 23 ward direction, so that the tube-section will and has an extension or lever 24 connected roll down the inclined bottom portions of i5 with the piston of a hydraulic ram 25. To V the trough-sections and roll over the skids 22 support or balance the saw and frame, an adonto the cooling-tables. The sawing of the ditional ram 26 is connected to the frame betube talges place after its rolling is completed, 7 5 tween the saw and stationary bearing, and and the*tube is quickly discharged by a side the two rams may be operated in unison,if movement from the` final receiving-trough as zo desired. soon as it is cut into sections, and the liability In the employment of the above invention of delays incident to sawing the tube and then the tube-blanks, either in plate or strip form feeding the different sections thereof succes- 8o or previously bent into U or tubular skelp sively to either sizing-rolls or cross-rolls, or form, Vare preferably fed through the rear end both, is avoided. The difficulties heretofore of the furnace, and when the invention is emexperienced in the manufacture of doubleployed in the manufacture of butt-weld tublen th tubin are thus overcome, while I am ing, being preferably fed into final heating ena led to nish the entire output of the 85 position, and as their edges are brought to furnace on a single set of sizing-rolls and g roper Welding heatthe blanks being grasped cross-rolls.

3o by suitable tongs 6, the Welding-bell thrown What I claim isover the same, the tongs connected to the 1. In. apparatus for the manufacture of draw-chain of the welding apparatus, and the multiple-length tubing, the combination of 9o blanks thus drawn through thewelding-bells, finishing-rolls adapted to receive and finish which are caught in the bell-holder 6a. The the tube, a closed final receiving-trough back tongs are then disengaged from the welded of and in line with the nishing-rolls, and a tube which is fed to the sizing-rolls, for exsawadapted to pass across thefinal receivingample, being passed sidewise over suitable trough and cut the tube into sections, the 95 skids into the trough 7 and then fed through final receivin -trough inclosing and supportthe sizing-rolls 8 into the cross-roll trough 9 ing the tube uring finishing and sawing.

4o and through the cross-rolls 10 into the final 2. In apparatus for the manufacture of receiving or cooling-table trough 11. In the multiple-length tubin the combination of mshiufacture of double-length tubing it is finishing-rolls adapte to receive and finish roo found that with some of the lar er slzes of the tube, a final receiving-trough back ofand pipe the pipeQ can b cross-rolled efore it is in line with the finishing-rolls, said trough cut into lengths, and in passing in the course having an inclined bottom portion and a above described the ipe can be carried cover hinged at the upper and outer edge quickly and Without de ay through both the thereof, a tube-receiver at the side of said m5 sizin -rolls and the cross-rolls, the dela s or final receiving-trough, and a saw adapted to acci ents liable to occur where the blianks pass across the final receiving-trough and cut 5o have to be stopped in their course and cut to the tube into sections.

lengths and then fed successivel to the fin- In testimony whereof I, the said AUGUS- ishing-rolls bein thus prevente the blanks TUs M. SAUNDERs, have hereunto set my 11o passing in strlaig t-iwy course tllilrougi boh hand. the sizin -ro ls an t c cross-ro s. s t e tube pasges through the cross-rolls it enters AUGUSTUS M' SAUNDERS the Across-roll trough, which entirely incloses Witnesses: the same and supports it durin the cross- JAMES I. KAY,V rolling action, as above describe As soon ROBERT C. ToTTEN. 

